Tim Beiko pointed out that EOF Option A had unexpectedly severe negative consequences on developer experience

Quotes that support claims

Shortly before ACDE#210, some core developers realized that their preferred EOF Option (Option A) had unexpectedly significant negative developer experience consequences. While these had been flagged before, their magnitude hadn’t been fully appreciated. Client teams agreed to urgently review these implications and resolve them by the next Testing/Interop #34 call.